<template>
  <view class="goods-sku-popup" catchtouchmove="true" :class="getValue() && complete ? 'show' : 'none'"
    @touchmove.stop.prevent="moveHandle" @click.stop="stop">
    <!-- 页面内容开始 -->
    <view class="mask" @click="close('mask')"></view>
    <view class="layer attr-content" :style="{
				borderRadius: borderRadius + 'rpx ' + borderRadius + 'rpx 0 0'
			}">
      <view class="specification-wrapper">
        <scroll-view class="specification-wrapper-content" scroll-y="true">
          <view class="specification-header">
            <view class="specification-left">
              <image class="product-img" :src="selectShop.image ? selectShop.image : goodsInfo[goodsThumbName]" :style="{
									backgroundColor: goodsThumbBackgroundColor
								}" mode="aspectFill" @click="previewImage"></image>
            </view>
            <view class="specification-right">
              <view class="price-content" :style="{
									color: themeColorFn('priceColor')
								}">
                <text class="sign">¥</text>
                <text class="price" :class="priceCom.length > 16 ? 'price2' : ''">
                  {{ priceCom }}
                </text>
              </view>
              <view class="inventory" v-if="!hideStock">{{ stockText }}：{{ stockCom }}</view>
              <view class="inventory" v-else></view>
              <view class="choose" v-show="isManyCom">
                <text v-if="!selectArr.every(val => val == '')">已选：{{ selectArr.join(' ') }}</text>
              </view>
            </view>
          </view>

          <view class="specification-content">
            <view v-show="isManyCom" class="specification-item" v-for="(item, index1) in goodsInfo[specListName]"
              :key="index1">
              <view class="item-title">{{ item.name }}</view>
              <view class="item-wrapper">
                <view class="item-content" v-for="(item_value, index2) in item.list" :key="index2" :class="[
										item_value.ishow ? '' : 'noactived',
										subIndex[index1] == index2 ? 'actived' : ''
									]" :style="[
										item_value.ishow ? '' : themeColorFn('disableStyle'),
										item_value.ishow ? themeColorFn('btnStyle') : '',
										subIndex[index1] == index2 ? themeColorFn('activedStyle') : ''
									]" @click="skuClick(item_value, index1, index2)">
                  {{ item_value.name }}
                </view>
              </view>
            </view>
            <view class="number-box-view">
              <view style="flex: 1;">数量</view>
              <view style="flex: 4;text-align: right;">
                <number-box v-model="selectNum" :min="minBuyNum || 1" :max="maxBuyNumCom" :step="stepBuyNum || 1"
                  :step-strictly="stepStrictly" :positive-integer="true">
                </number-box>
              </view>
            </view>
          </view>
        </scroll-view>
        <view class="close" @click="close('close')" v-if="showClose != false">
          <image class="close-item" :src="closeImage"></image>
        </view>
      </view>

      <view class="btn-wrapper" v-if="outFoStock || mode == 4">
        <view class="sure" style="color:#ffffff;background-color:#cccccc">{{ noStockText }}</view>
      </view>
      <view class="btn-wrapper" v-else-if="mode == 1">
        <view class="sure add-cart" style="border-radius:38rpx 0rpx 0rpx 38rpx;" @click="addCart" :style="{
						color: themeColorFn('addCartColor'),
						backgroundColor: themeColorFn('addCartBackgroundColor')
					}">
          {{ addCartText }}
        </view>

        <view class="sure" style="border-radius:0rpx 38rpx 38rpx 0rpx;" @click="buyNow" :style="{
						color: themeColorFn('buyNowColor'),
						backgroundColor: themeColorFn('buyNowBackgroundColor')
					}">
          {{ buyNowText }}
        </view>
      </view>
      <view class="btn-wrapper" v-else-if="mode == 2">
        <view class="sure add-cart" @click="addCart" :style="{
						color: themeColorFn('addCartColor'),
						backgroundColor: themeColorFn('addCartBackgroundColor')
					}">
          {{ addCartText }}
        </view>
      </view>
      <view class="btn-wrapper" v-else-if="mode == 3">
        <view class="sure" @click="buyNow" :style="{
						color: themeColorFn('buyNowColor'),
						backgroundColor: themeColorFn('buyNowBackgroundColor')
					}">
          {{ buyNowText }}
        </view>
      </view>
    </view>
    <!-- 页面内容结束 -->
  </view>
</template>

<script>
  import NumberBox from './number-box'
  var vk; // vk依赖
  var goodsCache = {}; // 本地商品缓存
  export default {
    name: "GoodsSkuPopup",
    components: {
      NumberBox
    },
    emits: ["update:modelValue", "input", "update-goods", "open", "close", "add-cart", "buy-now"],
    props: {
      // true 组件显示 false 组件隐藏
      value: {
        Type: Boolean,
        default: false
      },
      modelValue: {
        Type: Boolean,
        default: false
      },
      // vk云函数路由模式参数开始-----------------------------------------------------------
      // 商品id
      goodsId: {
        Type: String,
        default: ""
      },
      // vk路由模式框架下的云函数地址
      action: {
        Type: String,
        default: ""
      },
      // vk云函数路由模式参数结束-----------------------------------------------------------
      // 该商品已抢完时的按钮文字
      noStockText: {
        Type: String,
        default: "该商品已抢完"
      },
      // 库存文字
      stockText: {
        Type: String,
        default: "库存"
      },
      // 商品表id的字段名
      goodsIdName: {
        Type: String,
        default: "_id"
      },
      // sku表id的字段名
      skuIdName: {
        Type: String,
        default: "_id"
      },
      // sku_list的字段名
      skuListName: {
        Type: String,
        default: "sku_list"
      },
      // spec_list的字段名
      specListName: {
        Type: String,
        default: "spec_list"
      },
      // 库存的字段名 默认 stock
      stockName: {
        Type: String,
        default: "stock"
      },
      // sku组合路径的字段名
      skuArrName: {
        Type: String,
        default: "sku_name_arr"
      },
      // 默认单规格时的规格组名称
      defaultSingleSkuName: {
        Type: String,
        default: "默认"
      },
      // 模式 1:都显示  2:只显示购物车 3:只显示立即购买 4:显示缺货按钮 默认 1
      mode: {
        Type: Number,
        default: 1
      },
      // 点击遮罩是否关闭组件 true 关闭 false 不关闭 默认true
      maskCloseAble: {
        Type: Boolean,
        default: true
      },
      // 顶部圆角值
      borderRadius: {
        Type: [String, Number],
        default: 0
      },
      // 商品缩略图字段名(未选择sku时)
      goodsThumbName: {
        Type: [String],
        default: "goods_thumb"
      },
      // 商品缩略图背景颜色，如#999999
      goodsThumbBackgroundColor: {
        Type: String,
        default: "#999999"
      },
      // 最小购买数量 默认 1
      minBuyNum: {
        Type: [Number, String],
        default: 1
      },
      // 最大购买数量 默认 100000
      maxBuyNum: {
        Type: [Number, String],
        default: 100000
      },
      // 步进器步长 默认 1
      stepBuyNum: {
        Type: [Number, String],
        default: 1
      },
      // 是否只能输入 step 的倍数
      stepStrictly: {
        Type: Boolean,
        default: false
      },
      // 自定义获取商品信息的函数,支付宝小程序不支持该属性,请使用localdata属性
      customAction: {
        Type: [Function],
        default: null
      },
      // 本地数据源
      localdata: {
        type: Object
      },
      // 价格的字体颜色
      priceColor: {
        Type: String
      },
      // 立即购买按钮的文字
      buyNowText: {
        Type: String,
        default: "立即购买"
      },
      // 立即购买按钮的字体颜色
      buyNowColor: {
        Type: String
      },
      // 立即购买按钮的背景颜色
      buyNowBackgroundColor: {
        Type: String
      },
      // 加入购物车按钮的文字
      addCartText: {
        Type: String,
        default: "加入购物车"
      },
      // 加入购物车按钮的字体颜色
      addCartColor: {
        Type: String
      },
      // 加入购物车按钮的背景颜色
      addCartBackgroundColor: {
        Type: String
      },
      // 不可点击时,按钮的样式
      disableStyle: {
        Type: Object,
        default: null
      },
      // 按钮点击时的样式
      activedStyle: {
        Type: Object,
        default: null
      },
      // 按钮常态的样式
      btnStyle: {
        Type: Object,
        default: null
      },
      // 是否显示右上角关闭按钮
      showClose: {
        Type: Boolean,
        default: true
      },
      // 关闭按钮的图片地址 https://img.alicdn.com/imgextra/i1/121022687/O1CN01ImN0O11VigqwzpLiK_!!121022687.png
      closeImage: {
        Type: String,
        default: ""
      },
      // 是否隐藏库存显示
      hideStock: {
        Type: Boolean,
        default: false
      },
      // 颜色主题
      theme: {
        Type: String,
        default: "default"
      },
      // 请求中的提示
      actionTips: {
        Type: String,
        default: "请求中..."
      },
      // 默认选中的SKU
      defaultSelect: {
        Type: Object
      },
      // 是否使用缓存
      useCache: {
        Type: Boolean,
        default: true
      },
      /**
       * 默认商品,设置该值可快速展示商品
       * 逻辑: 先展示 defaultGoods 信息,再取数据库,再更新页面(通常为更新库存)
       */
      defaultGoods: {
        Type: Object
      },
      /**
       * 金额是否需要除以100
       * 1:金额会除以100
       * 0:金额不会除以100
       */
      amountType: {
        Type: Number,
        default: 1
      },
      // 每次选择完SKU后，购买数量归1，如果有最小购买数量，则设置为最小购买数量
      selectedInit: {
        Type: Boolean,
        default: false
      },
    },
    data() {
      return {
        complete: false, // 组件是否加载完成
        goodsInfo: {}, // 商品信息
        isShow: false, // true 显示 false 隐藏
        initKey: true, // 是否已初始化
        shopItemInfo: {}, // 存放要和选中的值进行匹配的数据
        selectArr: [], // 存放被选中的值
        subIndex: [], // 是否选中 因为不确定是多规格还是单规格，所以这里定义数组来判断
        selectShop: {}, // 存放最后选中的商品
        selectNum: this.minBuyNum || 1, // 选中数量
        outFoStock: false, // 是否全部sku都缺货
        openTime: 0,
        themeColor: {
          // 默认主题
          default: {
            priceColor: "rgb(254, 86, 10)",
            buyNowColor: "#ffffff",
            buyNowBackgroundColor: "rgb(254, 86, 10)",
            addCartColor: "#ffffff",
            addCartBackgroundColor: "rgb(255, 148, 2)",
            btnStyle: {
              color: "#333333",
              borderColor: "#f4f4f4",
              backgroundColor: "#ffffff"
            },
            activedStyle: {
              color: "rgb(254, 86, 10)",
              borderColor: "rgb(254, 86, 10)",
              backgroundColor: "rgba(254,86,10,0.1)"
            },
            disableStyle: {
              color: "#c3c3c3",
              borderColor: "#f6f6f6",
              backgroundColor: "#f6f6f6"
            }
          },
          // 红黑主题
          "red-black": {
            priceColor: "rgb(255, 68, 68)",
            buyNowColor: "#ffffff",
            buyNowBackgroundColor: "rgb(255, 68, 68)",
            addCartColor: "#ffffff",
            addCartBackgroundColor: "rgb(85, 85, 85)",
            activedStyle: {
              color: "rgb(255, 68, 68)",
              borderColor: "rgb(255, 68, 68)",
              backgroundColor: "rgba(255,68,68,0.1)"
            }
          },
          // 黑白主题
          "black-white": {
            priceColor: "rgb(47, 47, 52)",
            buyNowColor: "#ffffff",
            buyNowBackgroundColor: "rgb(47, 47, 52)",
            addCartColor: "rgb(47, 47, 52)",
            addCartBackgroundColor: "rgb(235, 236, 242)",
            // btnStyle:{
            // 	color:"rgb(47, 47, 52)",
            // 	borderColor:"rgba(235,236,242,0.5)",
            // 	backgroundColor:"rgba(235,236,242,0.5)",
            // },
            activedStyle: {
              color: "rgb(47, 47, 52)",
              borderColor: "rgba(47,47,52,0.12)",
              backgroundColor: "rgba(47,47,52,0.12)"
            }
          },
          // 咖啡色主题
          coffee: {
            priceColor: "rgb(195, 167, 105)",
            buyNowColor: "#ffffff",
            buyNowBackgroundColor: "rgb(195, 167, 105)",
            addCartColor: "rgb(195, 167, 105)",
            addCartBackgroundColor: "rgb(243, 238, 225)",
            activedStyle: {
              color: "rgb(195, 167, 105)",
              borderColor: "rgb(195, 167, 105)",
              backgroundColor: "rgba(195, 167, 105,0.1)"
            }
          },
          // 浅绿色主题
          green: {
            priceColor: "rgb(99, 190, 114)",
            buyNowColor: "#ffffff",
            buyNowBackgroundColor: "rgb(99, 190, 114)",
            addCartColor: "rgb(99, 190, 114)",
            addCartBackgroundColor: "rgb(225, 244, 227)",
            activedStyle: {
              color: "rgb(99, 190, 114)",
              borderColor: "rgb(99, 190, 114)",
              backgroundColor: "rgba(99, 190, 114,0.1)"
            }
          }
        }
      };
    },
    created() {
      let that = this;
      vk = that.vk;
      if (that.getValue()) {
        that.open();
      }
    },
    mounted() {},
    methods: {
      // 初始化
      init(notAutoClick) {
        let that = this;
        // 清空之前的数据
        that.selectArr = [];
        that.subIndex = [];
        that.selectShop = {};
        that.selectNum = that.minBuyNum || 1;
        that.outFoStock = false;
        that.shopItemInfo = {};
        let specListName = that.specListName;
        that.goodsInfo[specListName].map(item => {
          that.selectArr.push("");
          that.subIndex.push(-1);
        });
        that.checkItem(); // 计算sku里面规格形成路径
        that.checkInpath(-1); // 传-1是为了不跳过循环
        if (!notAutoClick) that.autoClickSku(); // 自动选择sku策略
      },
      getValue() {
        // #ifndef VUE3
        return this.value;
        // #endif

        // #ifdef VUE3
        return this.modelValue;
        // #endif
      },
      // 使用vk路由模式框架获取商品信息
      findGoodsInfo(obj = {}) {
        let that = this;
        let { useCache } = obj;
        if (typeof vk == "undefined") {
          that.toast("custom-action必须是function", "none");
          return false;
        }
        let { actionTips } = that;
        let actionTitle = "";
        let actionAoading = false;
        if (actionTips !== "custom") {
          actionTitle = useCache ? "" : "请求中...";
        } else {
          actionAoading = useCache ? false : true;
        }
        vk.callFunction({
          url: that.action,
          title: actionTitle,
          loading: actionAoading,
          data: {
            goods_id: that.goodsId
          },
          success(data) {
            that.updateGoodsInfo(data.goodsInfo);
            // 更新缓存
            goodsCache[that.goodsId] = data.goodsInfo;
            that.$emit("update-goods", data.goodsInfo);
          },
          fail() {
            that.updateValue(false);
          }
        });
      },
      updateValue(value) {
        let that = this;
        if (value) {
          that.$emit("open", true);
          that.$emit("input", true);
          that.$emit("update:modelValue", true);
        } else {
          that.$emit("input", false);
          that.$emit("close", "close");
          that.$emit("update:modelValue", false);
        }
      },
      // 更新商品信息(库存、名称、图片)
      updateGoodsInfo(goodsInfo) {
        let that = this;
        // goodsInfo.sku_list.map((item, index) => {
        // 	item.sku_name_arr = ["20ml/瓶"];
        // });
        let { skuListName } = that;
        if (
          JSON.stringify(that.goodsInfo) === "{}" ||
          that.goodsInfo[that.goodsIdName] !== goodsInfo[that.goodsIdName]
        ) {
          that.goodsInfo = goodsInfo;
          that.initKey = true;
        } else {
          that.goodsInfo[skuListName] = goodsInfo[skuListName];
        }
        if (that.initKey) {
          that.initKey = false;
          that.init(that.isManyCom);
        }
        // 更新选中sku的库存信息
        let select_sku_info = that.getListItem(
          that.goodsInfo[skuListName],
          that.skuIdName,
          that.selectShop[that.skuIdName]
        );
        Object.assign(that.selectShop, select_sku_info);
        that.defaultSelectSku();
        that.complete = true;
      },
      async open() {
        let that = this;
        that.openTime = new Date().getTime();
        let findGoodsInfoRun = true;
        let skuListName = that.skuListName;
        // 先获取缓存中的商品信息
        let useCache = false;
        let goodsInfo = goodsCache[that.goodsId];
        if (goodsInfo && that.useCache) {
          useCache = true;
          that.updateGoodsInfo(goodsInfo);
        } else {
          that.complete = false;
        }
        if (that.customAction && typeof that.customAction === "function") {
          try {
            goodsInfo = await that
              .customAction({
                useCache,
                goodsId: that.goodsId,
                goodsInfo,
                close: function() {
                  setTimeout(function() {
                    that.close();
                  }, 500);
                }
              })
              .catch(err => {
                setTimeout(function() {
                  that.close();
                }, 500);
              });
          } catch (err) {
            let { message = "" } = err;
            if (message.indexOf(".catch is not a function") > -1) {
              that.toast("custom-action必须返回一个Promise", "none");
              setTimeout(function() {
                that.close();
              }, 500);
              return false;
            }
          }
          // 更新缓存
          goodsCache[that.goodsId] = goodsInfo;
          if (goodsInfo && typeof goodsInfo == "object" && JSON.stringify(goodsInfo) != "{}") {
            findGoodsInfoRun = false;
            that.updateGoodsInfo(goodsInfo);
            that.updateValue(true);
          } else {
            that.toast("未获取到商品信息", "none");
            that.$emit("input", false);
            return false;
          }
        } else if (typeof that.localdata !== "undefined" && that.localdata !== null) {
          goodsInfo = that.localdata;
          if (goodsInfo && typeof goodsInfo == "object" && JSON.stringify(goodsInfo) != "{}") {
            findGoodsInfoRun = false;
            that.updateGoodsInfo(goodsInfo);
            that.updateValue(true);
          } else {
            that.toast("未获取到商品信息", "none");
            that.$emit("input", false);
            return false;
          }
        } else {
          if (findGoodsInfoRun) that.findGoodsInfo({ useCache });
        }
      },
      // 监听 - 弹出层收起
      close(s) {
        let that = this;
        if (new Date().getTime() - that.openTime < 400) {
          return false;
        }
        if (s == "mask") {
          if (that.maskCloseAble !== false) {
            that.$emit("input", false);
            that.$emit("close", "mask");
            that.$emit("update:modelValue", false);
          }
        } else {
          that.$emit("input", false);
          that.$emit("close", "close");
          that.$emit("update:modelValue", false);
        }
      },
      moveHandle() {
        //禁止父元素滑动
      },
      // sku按钮的点击事件
      skuClick(value, index1, index2) {
        let that = this;
        if (value.ishow) {
          if (that.selectArr[index1] != value.name) {
            that.$set(that.selectArr, index1, value.name);
            that.$set(that.subIndex, index1, index2);
          } else {
            that.$set(that.selectArr, index1, "");
            that.$set(that.subIndex, index1, -1);
          }
          that.checkInpath(index1);
          // 如果全部选完
          that.checkSelectShop();
        }
      },
      // 检测是否已经选完sku
      checkSelectShop() {
        let that = this;
        // 如果全部选完
        if (that.selectArr.every(item => item != "")) {
          that.selectShop = that.shopItemInfo[that.getArrayToSting(that.selectArr)];
          let stock = that.selectShop[that.stockName];
          if (typeof stock !== "undefined" && that.selectNum > stock) {
            that.selectNum = stock;
          }
          if (that.selectNum > that.maxBuyNum) {
            that.selectNum = that.maxBuyNum;
          }
          if (that.selectNum < that.minBuyNum) {
            that.selectNum = that.minBuyNum;
          }
          if (that.selectedInit) {
            that.selectNum = that.minBuyNum || 1;
          }
        } else {
          that.selectShop = {};
        }
      },
      // 检查路径
      checkInpath(clickIndex) {
        let that = this;
        let specListName = that.specListName;
        //console.time('筛选可选路径需要的时间是');
        //循环所有属性判断哪些属性可选
        //当前选中的兄弟节点和已选中属性不需要循环
        let specList = that.goodsInfo[specListName];
        for (let i = 0, len = specList.length; i < len; i++) {
          if (i == clickIndex) {
            continue;
          }
          let len2 = specList[i].list.length;
          for (let j = 0; j < len2; j++) {
            if (that.subIndex[i] != -1 && j == that.subIndex[i]) {
              continue;
            }
            let choosed_copy = [...that.selectArr];
            that.$set(choosed_copy, i, specList[i].list[j].name);
            let choosed_copy2 = choosed_copy.filter(
              item => item !== "" && typeof item !== "undefined"
            );
            if (that.shopItemInfo.hasOwnProperty(that.getArrayToSting(choosed_copy2))) {
              specList[i].list[j].ishow = true;
            } else {
              specList[i].list[j].ishow = false;
            }
          }
        }
        that.$set(that.goodsInfo, specListName, specList);
        // console.timeEnd('筛选可选路径需要的时间是');
      },
      // 计算sku里面规格形成路径
      checkItem() {
        let that = this;
        // console.time('计算有多小种可选路径需要的时间是');
        let { stockName } = that;
        let skuListName = that.skuListName;
        // 去除库存小于等于0的商品sku
        let originalSkuList = that.goodsInfo[skuListName];
        let skuList = [];
        let stockNum = 0;
        originalSkuList.map((skuItem, index) => {
          if (skuItem[stockName] > 0) {
            skuList.push(skuItem);
            stockNum += skuItem[stockName];
          }
        });
        if (stockNum <= 0) {
          that.outFoStock = true;
        }
        // 计算有多小种可选路径
        let result = skuList.reduce(
          (arrs, items) => {
            return arrs.concat(
              items[that.skuArrName].reduce(
                (arr, item) => {
                  return arr.concat(
                    arr.map(item2 => {
                      // 利用对象属性的唯一性实现二维数组去重
                      //console.log(1,that.shopItemInfo,that.getArrayToSting([...item2, item]),item2,item,items);
                      if (!that.shopItemInfo.hasOwnProperty(that.getArrayToSting([...item2, item]))) {
                        that.shopItemInfo[that.getArrayToSting([...item2, item])] = items;
                      }
                      return [...item2, item];
                    })
                  );
                },
                [
                  []
                ]
              )
            );
          },
          [
            []
          ]
        );
        // console.timeEnd('计算有多小种可选路径需要的时间是');
      },
      getArrayToSting(arr) {
        let str = "";
        arr.map((item, index) => {
          item = item.replace(/\./g, "。");
          if (index == 0) {
            str += item;
          } else {
            str += "," + item;
          }
        });
        return str;
      },
      // 检测sku选项是否已全部选完,且有库存
      checkSelectComplete(obj = {}) {
        let that = this;
        let clickTime = new Date().getTime();
        if (that.clickTime && clickTime - that.clickTime < 400) {
          return false;
        }
        that.clickTime = clickTime;
        let { selectShop, selectNum, stockText, stockName } = that;
        if (!selectShop || !selectShop[that.skuIdName]) {
          that.toast("请先选择对应规格", "none");
          return false;
        }
        if (selectNum <= 0) {
          that.toast("购买数量必须>0", "none");
          return false;
        }
        // 判断库存
        if (selectNum > selectShop[stockName]) {
          that.toast(stockText + "不足", "none");
          return false;
        }
        if (typeof obj.success == "function") obj.success(selectShop);
      },
      // 加入购物车
      addCart() {
        let that = this;
        that.checkSelectComplete({
          success: function(selectShop) {
            selectShop.buy_num = that.selectNum;
            that.$emit("add-cart", selectShop);
            // setTimeout(function() {
            // 	that.init();
            // }, 300);
          }
        });
      },
      // 立即购买
      buyNow() {
        let that = this;
        that.checkSelectComplete({
          success: function(selectShop) {
            selectShop.buy_num = that.selectNum;
            that.$emit("buy-now", selectShop);
          }
        });
      },
      // 弹窗
      toast(title, icon) {
        uni.showToast({
          title: title,
          icon: icon
        });
      },
      // 获取对象数组中的某一个item,根据指定的键值
      getListItem(list, key, value) {
        let that = this;
        let item;
        for (let i in list) {
          if (typeof value == "object") {
            if (JSON.stringify(list[i][key]) === JSON.stringify(value)) {
              item = list[i];
              break;
            }
          } else {
            if (list[i][key] === value) {
              item = list[i];
              break;
            }
          }
        }
        return item;
      },
      getListIndex(list, key, value) {
        let that = this;
        let index = -1;
        for (let i = 0; i < list.length; i++) {
          if (list[i][key] === value) {
            index = i;
            break;
          }
        }
        return index;
      },
      // 自动选择sku前提是只有一组sku,默认自动选择最前面的有库存的sku
      autoClickSku() {
        let that = this;
        let skuList = that.goodsInfo[that.skuListName];
        let specListArr = that.goodsInfo[that.specListName];
        if (specListArr.length == 1) {
          let specList = specListArr[0].list;
          for (let i = 0; i < specList.length; i++) {
            let sku = that.getListItem(skuList, that.skuArrName, [specList[i].name]);
            if (sku) {
              that.skuClick(specList[i], 0, i);
              break;
            }
          }
        }
      },
      // 主题颜色
      themeColorFn(name) {
        let that = this;
        let { theme, themeColor } = that;
        let color = that[name] ? that[name] : themeColor[theme][name];
        return color;
      },
      defaultSelectSku() {
        let that = this;
        let { defaultSelect } = that;
        if (defaultSelect && defaultSelect.sku && defaultSelect.sku.length > 0) {
          that.selectSku(defaultSelect);
        }
      },
      /**
      	 * 主动方法 - 设置sku
      	that.$refs.skuPopup.selectSku({
      		sku:["红色","256G","公开版"],
      		num:5
      	});
      	 */
      selectSku(obj = {}) {
        let that = this;
        let { sku: skuArr, num: selectNum } = obj;
        let specListArr = that.goodsInfo[that.specListName];
        if (skuArr && specListArr.length === skuArr.length) {
          // 先清空
          let skuClickArr = [];
          let clickKey = true;
          for (let index = 0; index < skuArr.length; index++) {
            let skuName = skuArr[index];
            let specList = specListArr[index].list;
            let index1 = index;
            let index2 = that.getListIndex(specList, "name", skuName);
            if (index2 == -1) {
              clickKey = false;
              break;
            }
            skuClickArr.push({
              spec: specList[index2],
              index1: index1,
              index2: index2
            });
          }
          if (clickKey) {
            that.init(true);
            skuClickArr.map(item => {
              that.skuClick(item.spec, item.index1, item.index2);
            });
          }
        }
        if (selectNum > 0) that.selectNum = selectNum;
      },
      priceFilter(n = 0) {
        let that = this;
        if (typeof n == "string") {
          n = parseFloat(n);
        }
        if (that.amountType === 0) {
          return n.toFixed(2);
        } else {
          return (n / 100).toFixed(2);
        }
      },
      pushGoodsCache(goodsInfo) {
        let that = this;
        let { goodsIdName } = that;
        goodsCache[goodsInfo[goodsIdName]] = goodsInfo;
      },
      // 用于阻止冒泡
      stop() {},
      // 图片预览
      previewImage() {
        let that = this;
        let { selectShop, goodsInfo, goodsThumbName } = that;
        let src = selectShop.image ? selectShop.image : goodsInfo[goodsThumbName];
        if (src) {
          uni.previewImage({
            urls: [src]
          });
        }
      }
    },
    // 计算属性
    computed: {
      // 最大购买数量
      maxBuyNumCom() {
        let that = this;
        let max = that.maxBuyNum || 100000;
        let stockName = that.stockName;
        if (that.selectShop && typeof that.selectShop[stockName] !== "undefined") {
          // 最大购买量不能超过当前商品的库存
          if (max > that.selectShop[stockName]) {
            max = that.selectShop[stockName];
          }
        }
        return max;
      },
      // 是否是多规格
      isManyCom() {
        let that = this;
        let { goodsInfo, defaultSingleSkuName, specListName } = that;
        let isMany = true;
        if (
          goodsInfo[specListName] &&
          goodsInfo[specListName].length === 1 &&
          goodsInfo[specListName][0].list.length === 1 &&
          goodsInfo[specListName][0].name === defaultSingleSkuName
        ) {
          isMany = false;
        }
        return isMany;
      },
      // 默认价格区间计算
      priceCom() {
        let str = "";
        let that = this;
        let { selectShop = {}, goodsInfo = {}, skuListName, skuIdName } = that;
        if (selectShop[skuIdName]) {
          str = that.priceFilter(selectShop.price);
        } else {
          let skuList = goodsInfo[skuListName];
          if (skuList && skuList.length > 0) {
            let valueArr = [];
            skuList.map((skuItem, index) => {
              valueArr.push(skuItem.price);
            });
            let min = that.priceFilter(Math.min(...valueArr));
            let max = that.priceFilter(Math.max(...valueArr));
            if (min === max) {
              str = min + "";
            } else {
              str = `${min} - ${max}`;
            }
          }
        }
        return str;
      },
      // 库存显示
      stockCom() {
        let str = "";
        let that = this;
        let { selectShop = {}, goodsInfo = {}, skuListName, stockName } = that;
        if (selectShop[stockName]) {
          str = selectShop[stockName];
        } else {
          let skuList = goodsInfo[skuListName];
          if (skuList && skuList.length > 0) {
            let valueArr = [];
            skuList.map((skuItem, index) => {
              valueArr.push(skuItem[stockName]);
            });
            let min = Math.min(...valueArr);
            let max = Math.max(...valueArr);
            if (min === max) {
              str = min;
            } else {
              str = `${min} - ${max}`;
            }
          }
        }
        return str;
      },
    },
    watch: {
      value(newVal, oldValue) {
        let that = this;
        if (newVal) {
          that.open();
        }
      },
      modelValue(newVal, oldValue) {
        let that = this;
        if (newVal) {
          that.open();
        }
      },
      defaultGoods: {
        immediate: true,
        handler: function(newVal, oldValue) {
          let that = this;
          let { goodsIdName } = that;
          if (
            typeof newVal === "object" &&
            newVal &&
            newVal[goodsIdName] &&
            !goodsCache[newVal[goodsIdName]]
          ) {
            that.pushGoodsCache(newVal);
          }
        }
      }
    }
  };
</script>

<style lang="scss" scoped>
  /*  sku弹出层 */
  .goods-sku-popup {
    position: fixed;
    left: var(--window-left);
    right: var(--window-right);
    bottom: var(--window-bottom);
    top: var(--window-top);
    z-index: 21;
    overflow: hidden;

    &.show {
      display: block;

      .mask {
        animation: showPopup 0.2s linear both;
      }

      .layer {
        animation: showLayer 0.2s linear both;
        bottom: var(--window-bottom);
      }
    }

    &.hide {
      .mask {
        animation: hidePopup 0.2s linear both;
      }

      .layer {
        animation: hideLayer 0.2s linear both;
      }
    }

    &.none {
      display: none;
    }

    .mask {
      position: fixed;
      left: var(--window-left);
      right: var(--window-right);
      top: 0;
      height: 100%;
      z-index: 1;
      background-color: rgba(0, 0, 0, 0.65);
    }

    .layer {
      display: flex;
      flex-direction: column;
      position: fixed;
      left: var(--window-left);
      right: var(--window-right);
      bottom: var(--window-bottom);
      z-index: 99;
      border-radius: 10rpx 10rpx 0 0;
      background-color: #fff;
      // 设置ios刘海屏底部横线安全区域
      padding-bottom: constant(safe-area-inset-bottom);
      padding-bottom: env(safe-area-inset-bottom);

      .specification-wrapper {
        width: 100%;
        padding: 30rpx 25rpx;
        box-sizing: border-box;

        .specification-wrapper-content {
          width: 100%;
          max-height: 900rpx;
          min-height: 300rpx;

          &::-webkit-scrollbar {
            /*隐藏滚轮*/
            display: none;
          }

          .specification-header {
            width: 100%;
            display: flex;
            flex-direction: row;
            position: relative;
            margin-bottom: 40rpx;

            .specification-left {
              width: 180rpx;
              height: 180rpx;
              flex: 0 0 180rpx;

              .product-img {
                width: 180rpx;
                height: 180rpx;
              }
            }

            .specification-right {
              flex: 1;
              padding: 0 35rpx 10rpx 28rpx;
              box-sizing: border-box;
              display: flex;
              flex-direction: column;
              justify-content: flex-end;
              font-weight: 500;

              .price-content {
                color: #fe560a;
                margin-bottom: 10rpx;

                .sign {
                  font-size: 28rpx;
                  margin-right: 4rpx;
                }

                .price {
                  margin-left: 4rpx;
                  font-size: 48rpx;
                }

                .price2 {
                  margin-left: 4rpx;
                  font-size: 36rpx;
                }
              }

              .inventory {
                font-size: 24rpx;
                color: #525252;
                margin-bottom: 14rpx;
              }

              .choose {
                font-size: 24rpx;
                color: #525252;
                min-height: 32rpx;
              }
            }
          }

          .specification-content {
            font-weight: 500;

            .specification-item {
              margin-bottom: 40rpx;

              &:last-child {
                margin-bottom: 0;
              }

              .item-title {
                margin-bottom: 20rpx;
                font-size: 28rpx;
                color: #999999;
              }

              .item-wrapper {
                display: flex;
                flex-direction: row;
                flex-flow: wrap;
                margin-bottom: -20rpx;

                .item-content {
                  display: inline-block;
                  padding: 10rpx 35rpx;
                  font-size: 24rpx;
                  border-radius: 10rpx;
                  background-color: #ffffff;
                  color: #333333;
                  margin-right: 20rpx;
                  margin-bottom: 20rpx;
                  border: 2rpx solid #f4f4f4;
                  box-sizing: border-box;

                  &.actived {
                    border-color: #fe560a;
                    color: #fe560a;
                  }

                  &.noactived {
                    // background-color: #f6f6f6;
                    // border-color: #f6f6f6;
                    // color: #c3c3c3;
                    color: #c8c9cc;
                    background: #f2f3f5;
                    border-color: #f2f3f5;
                  }
                }
              }
            }

            .number-box-view {
              display: flex;
              padding-top: 20rpx;
            }
          }
        }

        .close {
          position: absolute;
          top: 30rpx;
          right: 25rpx;
          width: 50rpx;
          height: 50rpx;
          text-align: center;
          line-height: 50rpx;

          .close-item {
            width: 40rpx;
            height: 40rpx;
          }
        }
      }

      .btn-wrapper {
        display: flex;
        width: 100%;
        height: 120rpx;
        flex: 0 0 120rpx;
        align-items: center;
        justify-content: space-between;
        padding: 0 26rpx;
        box-sizing: border-box;

        .layer-btn {
          width: 335rpx;
          height: 76rpx;
          border-radius: 38rpx;
          color: #fff;
          line-height: 76rpx;
          text-align: center;
          font-weight: 500;
          font-size: 28rpx;

          &.add-cart {
            background: #ffbe46;
          }

          &.buy {
            background: #fe560a;
          }
        }

        .sure {
          margin: 0 auto;
          width: 95%;
          max-width: 1200rpx;
          height: 80rpx;
          border-radius: 38rpx;
          color: #fff;
          line-height: 80rpx;
          text-align: center;
          font-weight: 500;
          font-size: 28rpx;
          background: #fe560a;
        }

        .sure.add-cart {
          background: #ff9402;
        }
      }
    }

    @keyframes showPopup {
      0% {
        opacity: 0;
      }

      100% {
        opacity: 1;
      }
    }

    @keyframes hidePopup {
      0% {
        opacity: 1;
      }

      100% {
        opacity: 0;
      }
    }

    @keyframes showLayer {
      0% {
        transform: translateY(120%);
      }

      100% {
        transform: translateY(0%);
      }
    }

    @keyframes hideLayer {
      0% {
        transform: translateY(0);
      }

      100% {
        transform: translateY(120%);
      }
    }
  }
</style>
